641425611 has 8 divisors (see below), whose sum is σ = 856061440. Its totient is φ = 427203432.

The previous prime is 641425583. The next prime is 641425621. The reversal of 641425611 is 116524146.

641425611 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 641425611 - 2²⁵ = 607871179 is a prime.

It is a super-2 number, since 2×641425611² = 822853628893446642, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (641425621) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 99775 + ... + 106008.

It is an arithmetic number, because the mean of its divisors is an integer number (107007680).

Almost surely, 2^641425611 is an apocalyptic number.

641425611 is a deficient number, since it is larger than the sum of its proper divisors (214635829).

641425611 is a wasteful number, since it uses less digits than its factorization.

641425611 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 206825.

The product of its digits is 5760, while the sum is 30.

The square root of 641425611 is about 25326.3817194640. The cubic root of 641425611 is about 862.4132735314.

Adding to 641425611 its reverse (116524146), we get a palindrome (757949757).

The spelling of 641425611 in words is "six hundred forty-one million, four hundred twenty-five thousand, six hundred eleven".